Tone-arm stop



July 24, 1923.

Papal.

v 1463107 R. H. wElTERsHAusEN TONE ARM STOP Filed Aug. 4, 1922 ATTORNEY.

Patented July 24, 1923.,

arten arras man? raar 1 TONE-ARMI STOP.

application med August fi, i922. serial No. 579,692.

a manner as hereinafter set forth, means` for conveniently positioning, especially by one with impaired sight, of the needle of the tone arm of a phonograph, or the like, to contact with the record at the proper start- Y ing point.

A further objectof the invention is to provide a needle'positioning and tone arm arresting device for use in connection with phonographs, or the like, with means, in a manner as hereinafter set forth, for limiting the outward throw of the tone arm of a phonograph, or the like, to prevent the shifting of the arm oft' the record when positioning the needle for engagement with the latter, and which not only facilitates the operation of the machine, but prevents injury to the point of the needle, as is often the case when the needle is positioned to close proximity to the edge of the record, causing it to run ofi' the latter and damage its point.

A further object of the invention is to provide a needle positioning and tone arm arresting device for use in connection with phonographs, or the like, having means, in a manner as hereinafter set forth, which is adjustable so as to enable the employment of the device, to perform its function, with records of various sizes.

Further objects of the invention are to provide'a device for the purpose set forth, which is simple in its construction and arrangement, strong, durable, readily set up with respect to the tone arm adjustable,

and record of a phonograph, or the like, efficient and convenient in -its use, and inexpensive to manufacture.

With the foregoing and other objects in view, the vinvention consists of a novel construction, combination and arrangement of parts, as hereinafter more specifically described, and illustrated-in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations andmodications can be resorted to, which fall within the scopel of the claims hereunto appended.

In the drawings, wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a top plan view of a phonograph or the like, broken away, showing the adaptation therewith of a needle positioning' and tone arm arresting device in accordance with this invention,

Fig.v 2 is a side elevation of the device,

Fig. 3 is a sectional elevation,

gig. 4 is a section on line 4-4 of Fig. 3, Fig. 5 is a side elevation of a modification.

Referring to Figs. 1 to 4 of the drawings', l denotes the casing of a phonograph, orv the like, 2 a record of the disc type, 3 a rotatable carrier for the record 2, 4 the pivoted tone arm, and 5 the needle carried by the arm 4.

The device `includes a pair of vertically disposed lbase supporting plates 6, 7, and each of which is formed at its lower end with a flange 8, disposed at right angles with respect thereto, and formed with openings 9 for the passage of securing devices for maintaining the supporting members, 6, 7, liXedly secured in an upright position. The flanges 8, 9, are oppositely disposed with respect to each other. The holdfast devices for securing' the liange 8 in position, are indicated at 10. The upper portion of each of the members 6, 7 is offset as at 1l, and formed with rows of openings, as illustrated, three rows, but this number can be increased or diminished as desired. The rows of the openings are indicated at 12, and the openings of one row are staggered with respect to the openings of an adjacent row, and the rows of openings of the plate 6, are arranged in alignment with the rows of openings formed in the offset portion of the plate 7. The openings of the rows of one supporting membei1 or plate are arranged in alignment with the openings of the rows in the other supporting member or plate.

Interposed between the' members 6,y 7, and extending to the voffset portions 11 of said members, is anl inverted' yoke-shaped element 13,` which projects from the forward end of the members 6, 7. The projecting end of the element 13 has a major portion thereof bevelled inwardly as at 111. Positioned inthe element 13 and extending forwardly therefrom, is ay supporting bar 15, which is spaced from the top 16 of the element 13, thereby providing a guideway 17. The projecting end of the bar 15 is indicated at 18, and said bar 15 is lix'edly secured within the element 13, by transversely extending, holdfast devices 19, whichlnot'only extend through the bar 15, but also through the element 13, and the plates 6,7. rlhe bar15 as well asA the element 13 iny connection with the holdfast devices 1.9,'maintain' the plates or members 6, 7, in`

spaced relation relative toy each other.

Slidably mounted on the bar 18 and extended; into the gnideway 17, is an anglesh'aped combined needle j positioningand tone arm arresting member 'consisting of a horizontally extending arm 20 and a vertically disposed arm 211. The arm 2O is mounted on the bar 158 andshiftable thereon. rlfhe yoke-shaped element 13 provides means for maintaining the arm 20 in position with respecty to* the bar 18., The vertical arm 21 is provided with a sleeve 22 which is formed ofyany suitable cushioning material.l

rPhe combined needle' positioning and tone armarresting member is adjustably mounted on' the bar 18, and associated with said member, is a means for maintaining it in adjus'ted position, and suchmeans consist of a' lever arm 23,y havin-g a bifurcated outer end, asv indicated at 24,- and which is pivotally connected, as at 25,- to the vertical arm 211 of thestop member at a point below vthe lower end ofthe cushioning sleeve 22. The. rear endof the lever arm 23, is formed with a depend-ing extension 26, disposed at right angles" with respect to the lever arm 23, and

which is formed at its upper end with aprotuberance 27 `and at its lower` end with a1 nosel 28. ToA facilitate the shifting of the lever arm 23', when it is desired toadjust the saidarm- 23, al knob or other suitable device 29. is secured to the leverl arm 23 in proximity to the rear end thereof.

The extension 26, of the lever arm 23, is

of a length to seat on the upper face of thel top 16 of the element 13, as clearly shown in Fig. 3. The extension 26, is positioned between the offset portions 11 of the members 6, 7, and associates with a stop pin 30` which can selectively engage in any pair of aligning openings of opposed rows of openings 11. The pin 30 is positioned at the rear of the extension 26, and the nose 28. when the extension 26 is co-operating with the pin 30, is extended under the pin, as shown" in Fig. 3 in the drawing! The extension 26 in connection with the pin 30. act as means to arrest the rearward movementl of the combined needle positioning and tone arin arresting` member. rTwo pins 30, are illustrated, but it is obvious that` this number can be increased, or but a single pinnsed.

The rear corner of the offset portions 11, of the members 67, are connected together by a suitable holdfast device 31. f

Vihen using the device, it is secured to the casingl of the phonograph, or the like, so that the combined needle positioningand tone arm n arresting' member will have the sleeve A22 positioned in the path of the arm 4L. The combined needle positioning and tone arm arresting member is adjusted to a position, so that when the sleeve'22 is abutted by the arm 1, the need-le 5, will be in the desired position with respect to the disc 2. The' sleeve 22, is so positioned that it will be impossible for the tone arm, to swing. in a direction from olf the disc 2,-under such con-4 ditions preventing injury tothe point of the needle 5.

. Referring to Fig, which illustrates a modified form of device, the combined needle positioning and tone arm arresting member, as well as the adjusting lever therefor, is constructedin the same manner as' that shown in Figs. 1 to 4t, and like reference characters as employed in saidfigures, are also employed in Fig. 5 to designate the elements of said member and its adjusting lever.r rlfhe modified form shown in Fig; 5, includes a pair of supportingmembers or plates 32, only one of which is shown, and each of said plates or members 32, is pro` videdv with longitudinal ro ws of openings 33. arranged in' the same'manner as the rows ofy openings 11. l Mounted between the member or plate 32, is an inverted yolrershaped ele- The arm 36, in connection with the socket 37, supports the device in an elevated position. The bar 35, is spaced from the top of the element 34, to provide a guide. passage,

.and the said bar 35, element 34: and plate 32 are fixedly secured together by holdfast devices 39.

The horizontal leg 2O of the combined needle positioning and tone arm arresting member is mounted in the guide passage formed by the element 3a4 and bar 35, and is slidable upon said bar 35 to adjust its position. The device shown in Fig. 5 is operated in the same manner as that shown in connection with Figs. l to 4.

rlhe form of device shown in Fig. l, is employed in connection with a Victrola type of machine, or the like, while the form of device shown in Fig. 5, is used in connection with the type of a Columbia machine, or the like.

From the foregoing construction and arrangement of parts, it is obvious that a means is set up, whereby the tone arm of a phonograph, or the like, is arrested so that it cannot be shifted completely away from the record, and that futhermore, the device provides means so that when the stop arm, or rather tone arm, is arrested, the needle carried thereby will be properly positioned with respect to the record. The cushioning sleevel 22 prevents any damage or marring in any manner of the shiftable tone arm,

when said arm abuts the combined needle positioning and tone arm arresting member.

The adjustability of the combined needle positioning and tone arm arresting member, enables rthe device to be used in connection with any type of phonograph, or the like, or in connection with any size record, Whether the latter be twelve inch, ten inch, or any other diameter.

That I claim is l. A device for the purpose set forth comprising a supporting means provided with openings, a stop element selectively engaging in certain of said openings, and an adjustable combined needle positioning and tone arm arresting element slidably mounted in said means and co-operating with said stop element.

2. A device for the purpose set forth comprising a supporting means provided with openings, a stop element selectively engaging in certain of said openings, and an adjustable combined needle positioning and tone arm arresting element slidably mounted in said means and having a depending extension co-operating with said stop element.

3. A device for the purpose set forth comprising a supporting means provided with openings, a stop element selectively engaging in certain of said openings, an adjustable combined needle positioning and tone arm arresting element slidably mounted in said means, and an adjustable lever arm pivotally connected to said element and co-oper-l ating with saidelement.

y4. A device for the purpose set forth comprising a supporting means provided with i openings, a stop element selectively engaging in certain ofsaid'openings, an adjustable coinbined'needle positioning and tone' arm arresting element slidably mounted in` said means, andan adjustable lever armpivotally connected to said element and provided 'with an extension co-operating with said element.

.5. A device for the purpose set forth comprising a supporting element, a stop element adjustably mounted in said supporting element, and an adjustable combined needle positioning and tone arm arresting element slidably mounted in said supporting element and co-operating with said stop element.

t5. A device for the purpose set forth comprising a supporting element, an adjustable combined needle positioning and tone arm arresting element slidablyi mounted in said supporting element and provided with an eX- tension,` and a stop element adjustably moun'ted'in said supporting element and cooperating with said eXtension to' .arrest 'movementin one direction of said arresting element.

"7.. A device for the purpose set forth comprising a supporting element, an adjustable combined needle positioning and tone arm arresting element slidably mounted in said supporting element and projecting forwardly therefrom, and a stop element adjustably mounted in said supporting element and cooperating with said arresting element to prevent sliding movement thereof in one direction.

8. A device for the purpose set forth com;y prising a supporting element provided with rows of openings, said rows of openings disposed on each side of said supporting element, an adjustable combined needle positioning and tone arm arresting element slidably mounted in said supporting element and projecting forwardly therefrom, and a stop element selectively engaging in said openings and co-operating with said element to arrest sliding movement thereof in one direction.

9. A device for the purpose set forth comprising a supporting .element provided with rows of openings, said rows of openings disposed on each side of said supporting element, an adjustable combined needle positioning and tone arm arresting element Jam:

oluding ai pivotecl. lever: anni formed With anY eXtenslon.. co-operating withy and piojeoting,

below saidA stop element. l0'. A device for the-purpose set forth comprising a supporting, element provided passage and. projecting otwardly from.y

magno? sztiltsupportingY elernentnd a stop element 10 ing with said arresting element( for. limiting.

the sliding movement4 thereof-in one direction.

In testimony whereof, I affix my signature hereto.y Y ROBERT H. WEITERSHAUSEN. 

